I am curious to see if it is possible to match a key in *ngfor. Here is an example of my code on StackBlitz. However, when I try this method, it only displays No data.
HTML
<ul>
<li *ngFor="let course of courses; index as i">
{{key == course.id? course.name :'No data' }}
</li>
</ul>
Component
courses = [
{ id:1, name:'course1' },
{ id:2, name:'course2' },
{ id:3, name:'course3' }
];
key = [1,2];
}
key is a collection that you should verify the existence of course ids within.
<ul>
<li *ngFor="let course of courses; index as i">
{{ key.includes(course.id) ? course.name :'No data' }}
</li>
</ul>
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